current bounds on the number of colors: 0 -- 34
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:31 2012
Optimize a model with 629 rows, 613 columns and 2363 nonzeros
Presolve removed 2 rows and 34 columns
Presolve time: 0.00s
Presolved: 627 rows, 579 columns, 2329 nonzeros
Variable types: 0 continuous, 579 integer (579 binary)
Root relaxation: objective 0.000000e+00, 57 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (57 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
current bounds on the number of colors: 0 -- 17
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:31 2012
Optimize a model with 314 rows, 307 columns and 1112 nonzeros
Presolve removed 2 rows and 16 columns
Presolve time: 0.00s
Presolved: 312 rows, 291 columns, 1096 nonzeros
Variable types: 0 continuous, 291 integer (291 binary)
Root relaxation: objective 0.000000e+00, 61 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (61 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
current bounds on the number of colors: 0 -- 8
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:31 2012
Optimize a model with 174 rows, 171 columns and 556 nonzeros
Presolve removed 2 rows and 8 columns
Presolve time: 0.00s
Presolved: 172 rows, 163 columns, 548 nonzeros
Variable types: 0 continuous, 163 integer (163 binary)
Root relaxation: objective 0.000000e+00, 53 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (53 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
current bounds on the number of colors: 0 -- 4
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:31 2012
Optimize a model with 104 rows, 103 columns and 278 nonzeros
Presolve removed 36 rows and 39 columns
Presolve time: 0.00s
Presolved: 68 rows, 64 columns, 204 nonzeros
Variable types: 0 continuous, 64 integer (64 binary)
Root relaxation: objective 0.000000e+00, 32 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 0.00000 0 30 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (97 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)
Model objective exceeds cutoff
Best objective -, best bound 1.000000000000e+00, gap -
current bounds on the number of colors: 2 -- 4
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:31 2012
Optimize a model with 139 rows, 137 columns and 417 nonzeros
Presolve removed 2 rows and 6 columns
Presolve time: 0.00s
Presolved: 137 rows, 131 columns, 411 nonzeros
Variable types: 0 continuous, 131 integer (131 binary)
Root relaxation: objective 0.000000e+00, 48 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (48 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
optimal solution found: number of colors: 3